MapGetters failed to get data after vue2.5.13 version

1, vue 2.5.13 can be obtained normally, and then the version cannot be obtained
2. Code:
.vue file:

  computed: {
    ...mapGetters({
      packages: "getPackageByTag_data",
      pagerData: "getPackagesPager",
    }),
  },

in the pkg.js of modules of store:

  getters: {
    getPackageByTag_data: state => state.packages.Items || [],
    getPackagesPager: (state) => {
      delete state.packages.Items;
      return state.packages;
    },

in index.js of store:

const store = new Vuex.Store({
  state: {
    sskey: "",
    isShowAlert: false,
  },
  getters,
  actions,
  mutations,
  modules: {
    pkg,
    tag,
    account,
    // sskey
  },
});
Mar.05,2021
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